<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

   <form action="/login">
       用户名:<input type = "text" name="username"><br/>
       密码: <input type="password" name="pwd"><br/>
       <input type="submit" value="登录">
   </form>

</body>
</html>